Pencil-sharpener.



C. C. DODD PENCIL SHARPENER.

APPLICATIQN FILED AUG-H. 1914.

Patented Sept. 12, 1916.

2 SHEETS-SHEET 2.

CHESTER C. DODD, 0F EAMPA, TEXAS.

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Specification ers Patent. Patented Swept, 12, 1916,,

Application filed August 11, 1914. Serial No. 856,210.

To all whom it may concern:

Be it known that I, CHESTER C. Dom), acitizen of the United States, and a resident of Pampa, in the county of Gray and State of Texas, have invented certain new anduseful Improvements in Pencil-Sharpeners, of which the following is a specification, reference being had to the accompanying drawings. t

This invention has relation to pencil sharpeners especially adapted to be used in conjunction with the motor shaft of an ordinary electric fan, such as are usually employed in ofiices, and consists in the novel features hereinafter described and claimed.

. The object of the invention is to provide an attachment of simple form adapted to be applied to the driving shaft of a fan m0- tor, and which rotates with the same. The attachment is provided with a cutting holder and is admirably adapted to expeditiously sharpen the point of a pencil.

Another object of the invention is to provide a pencil sharpening attachment of this general character of a simple and inexpensive nature, and of a compact and durable construction, which shall be capable of convenient and accurate adjustment in position upon the end of a fan motor shaft.

lVith these and other objects in View, the present invention consists in the combination and arrangementv of parts as will be hereinafter more fully described and finally pointed out in the appended claims, it being further understood that changes in the specific structure shown and described may be made within the scope of the claims without departing from the spirit of the invention.

In the accompanying drawings forming a part of this specification and in which like numerals of reference indicate similar parts in the several views: Figure 1, shows a side elevational View of an ordinary electric fan provided with a pencil sharpener embodying my invention. Fig. 2, shows a transverse elevational View through the pencil sharpener, showing the point socket. Fig. 3, shows an enlarged detail disclosing the stub shaft as attached to the motor shaft. Fig. 4, shows a modification where the motor shaft is projected beyond the motor case and arranged to receive the cuff of the pencil sharpener. Fig. 5, is an enlarged cen tral sectional view through the pencil sharpener. Fig. 6, is a section on line 6, 6

of Fig. 5. Fig. 7, shows a perspective view of the pencil sharpener proper. Fig. 8, shows a detail disclosing one of the spring holding studs as used in my invention.

In my present invention I provide a-pencil sharpener arranged to be secured. to the ing B, by means of the screws 15, is the dished sheet metal-shield 14. This shield, as shown 1n Flg. 5, has a central opening through which the stub shaft 13, passes. As disclosed, the shield ends in an outwardly flared edge through which the screws 15, pass. Secured to this dished shield 14, is the tubular casing 16, having the securing flange 6, arranged to seat snugly upon the edge of the dished shield 14, as is clearly shown in F 1g. 5. The casing 16, is held in position by means of the bolts 3. i

As shown, the casing 16, is provided with the end 19,'ending in the recurved collar 20, from which extend the curved spring fingers 2. This casing 16, is provided with a drawer housing 17 within which is held the drawer 18, used to collect the shavings dropping from the pencil during the sharpening operatlon.

Assisting the spring fingers 2, in holding the pencil P, which is shown introduced in the casing in Figs. 5 and 1, are the spring clasping arms 23, having the bowed portions 24, which terminate in the sliding ends 26. These ends have a slot within each of which slides a pin 7, so that these spring arms 23, can move backward and forward away from and toward the-center of the casing 16. The

forward curved end 25, of each spring arm 23, is fixed to the forward end 19, of the casing by means of a bolt 8.

Passing through the casing in alinement with each arm 23, is a set screw 21. Each one of these set screws has its end in loose engagement within a cap 4, each cap in turn being secured to the outer end of a coilv spring 22, the inner end of each coil spring being secured to the threaded body portion of a stud 5, each stud 5, having a nib 6, ar-

ranged to fit into an opening within an arm 23. In Fig. 8 one of the studs is shownin detail. By means of these screws 21, the tension of the springs 22, may be regulated.

Threading upon the stub shaft 13, is the cuff 28, of a conical pencil sharpener 29. As shown in Figs. 2 and 7, the inner face of this pencil sharpener is provided with the abrading or file surface F, this surface ending in a conical point socket a, which is also roughened and adapted to impart a fine point to the pencil.

The pencil sharpener 29, is provided at suitable points with escape openings 31, through which the shavings escape, one of the edges being provided with a knife 30, secured by means of suitable screws '0. The housing opposite the screws is provided with the access openings at, permitting the operation of a suitable screw driver.

The fan being in motion and it being desired to sharpen a pencil, it is simply necessary to introduce the same in the spring collar 20, and shoving the pencil forward to bring the introduced end into engagement with the knife 30, and the file surface F,

which will result in the pencil being speedily sharpened and pointed.

These pencil sharpeners are arranged to be attached to any ordinary electric fan as it is immaterial how fast the shaft rotates.

The size of the fan shaft further is not im I to receive the threaded stem 12, of the stub shaft 13. The pencil sharpener in no way interferes with the operation of. the fan and is simple and inexpensive in construction, and both durable and efficient in operation, and the sharpener can be attached to any ordinary electric fan with ease, accuracy and despatch.

Having thus described my said invention, what I claim as new and desire to secure by Letters Patent is:

1. In combination with a shaft and .its support, of a shield secured to said support, a tubular casing secured to said shield ending in a spring collar in alinement with said shaft, a plurality of spring clasping arms fixed at one end to said casing and s idably held at the other end, and a cutter having one end secured to said shaft, as and for the purpose set forth.

2. In combination with a shaft and its support, of a tubular casing secured to said support ending in a spring collar in alinement with said shaft, a plurality of spring clasping arms fixed at one end to said car ingand slidably held at the other end, and a cutter. having one end secured to said shaft, as and for the purpose set forth.

3. In combination with a shaft and its support, of a shield secured to said support, a tubular casing secured to said shield ending in a spring collar in alinement with said shaft, a plurality of spring clasping arms fixed at one end to said casing and slidably held at the other end, a spring in engagement with each arm, and a cutter having one end secured to said shaft, as and for the purpose set forth.

4. In combination with a shaft and its support, of a shield secured to said siipport, a tubular casing secured to said shield ending in a spring collar in alinement with said shaft, a plurality of spring clasping arms fixed at one end to said casing and slidably held at the other end, springs in engagement with said arms, means to regulate the tension of said springs, and a cutter having one end secured to said shaft, as and for the purpose set forth.

5. In combination, a shaft, a shield held adjacent to said shaft a tubular casing secured to said. shield ending in a spring collar in aliuement with said shaft, a plurality of spring elasping arms fixed to said casing, springs in engagement with said arms, meansto regulate the tension of said springs, a sharpener including a conical member with escape openings secured to said shaft, and a cutting blade secured to said member.

6. In combination, a shield having a central opening, a casing secured to said shield ending in a spring collar in alinement with said opening, a plurality of spring arms fixed to said casing, springs in engagement with said arms, means to regulate the tension of said springs, a stub shaft passing sharpener having a stem secured to said I shaft said stem held within an opening of said shield.

In testimony whereof I afix my signature, I

in the presence of two witnesses.

CHESTER C. DODD.

Witness B. E. Frnrnr. 

